[PATCH] FLAT: fix unmap len in load error path

From: Mike Frysinger
Date: Wed May 26 2010 - 04:39:44 EST


The data chunk is mmaped with 'len' which remains unchanged, so use that
when unmapping in the error path rather than trying to recalculate (and
incorrectly so) the value used originally.

Signed-off-by: Mike Frysinger <vapier@xxxxxxxxxx>
---
fs/binfmt_flat.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/fs/binfmt_flat.c b/fs/binfmt_flat.c
index 4959a0a..f7a4059 100644
--- a/fs/binfmt_flat.c
+++ b/fs/binfmt_flat.c
@@ -596,7 +596,7 @@ static int load_flat_file(struct linux_binprm * bprm,
if (IS_ERR_VALUE(result)) {
printk("Unable to read data+bss, errno %d\n", (int)-result);
do_munmap(current->mm, textpos, text_len);
- do_munmap(current->mm, realdatastart, data_len + extra);
+ do_munmap(current->mm, realdatastart, len);
ret = result;
goto err;
}
--
1.7.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/